By using the latest CVS version I noticed the following things:
1) In mode 24 bpp, FlightGear ran faster than in 16 bpp (I also switched the Xfree depth to 24 and 16 then). Is there any known explanation (I haven't made benchmark, but judging by the eye I thought it was faster) for this. I think it's the textures fault as they are in 32 bit palette maybe? (including alpha channel) And FlightGear needs to calculate approximates to 24 output palette then?
2) The resolution I had on my X was 1024x768 all the time and I wanted to run FlightGear in 800x600, but had no luck. There was a sign when starting up that it is about to run in 800x600 mode, but when switching to fullscreen, the X mode still stayed 1024x768. I have the possible resolution set in xfree86 config file and ctrl+alt++/- work fine and others applications do change the resolution as well. Is there any parameter to set FlightGear to change the system resolution and runs in that in fullscreen? (I searched for man pages, but haven't found anything) I know it worked in Windows some days.
3) --disable-textures parameter is not working.
4) Any way to limit the texture size to at most 256*256 or 512*512 pixels, because when starting up, the limit of 2048*2048 is set AFAIK.
5) Around the default KFSO, the framerate is way slower than in e.g. Slovenia. Is there any way to fix that (I know there are way more objects, but still I think it should be faster than 6 FPS when looking to the city or airfield)
6) I tried to disable clouds (and sky blending? Is this the same thing because when sky blending is off, there are no clouds) and FPS increased from KSFO 5 FPS to about 9, 10 FPS.
7) By increasing FOV, the framerate decreases drasticly. I would really like to enjoy in a bit wider FOV when playing, but it really hits the FPS. Is this normal?
8) By decreasing visibility, the framerate increases drasticly. I like that:)
9) LJLJ airfield (Slovenia) was more or less playable (about 15 FPS average) with turned clouds on.
10) Sunsets look really nice!:)
- Matevz
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